The best AI video generators in 2026, by clip length and price

What an AI video generator does

An AI video generator turns a written prompt, a photo or a short video into a new clip, drawing every frame from your description of the scene, camera movement and mood. The newest models also generate the sound in the same pass, from footsteps and background noise to spoken dialogue.

It helps to separate models from apps. Kling 4.0, Gemini Omni and Wan 3.0 are models, while Google Flow, Runway and Luma AI are apps that wrap models in a studio. Runway and Luma also run other companies' models, so the same model can cost a different amount depending on where you use it.

Consistency tools, which keep a face or product looking the same from shot to shot, matter most for ads and stories. If you need still pictures instead, our guide to the best AI image generators covers those.

The best AI video generators at a glance

Prices are per month, billed monthly, from each maker's own pricing page on Nov 8, 2026. "Longest clip" is the most one generation can make on the plans listed.

Tool	Free use	Paid from	Longest clip	Sound	Best for
Google Flow	50 credits a day	$4.99	15 seconds	Yes	Most people
Kling AI	No monthly credits, watermarked	$10	30 seconds	Yes	Longer clips
Runway	125 credits, once	$15	10 seconds	With partner models	Editing footage
Luma AI	No	$30	10 seconds	With partner models	HDR and color work
Wan 3.0	Short clips in a queue, watermarked	$10	30 seconds	Yes	The lowest price
FLUX 3	No	$0.17 a second	20 seconds	Yes	Paying per clip

The six best, one by one

2. Kling AI: best for longer clips

• Kling AIBest for longer clipsFree

Kling AI is Kuaishou's video app, and its newest model, Kling 4.0, generates a single clip of 3 to 30 seconds with stereo sound and dialogue. It can follow up to 10 keyframes or use up to 15 reference files, such as images, videos and voice samples. Multi-shot is on by default, so one prompt can produce several camera cuts.

Kling's own pages disagree on whether 4.0 already supports 1080p and 4K, although the older Kling 3.0 offers native 4K today. Standard costs $10 a month for 660 credits, and Pro costs $37 for 3,000. The free Basic plan includes no monthly credits, keeps the watermark and doesn't allow commercial use.

Good

• 30-second clips with sound in one go
• Up to 15 reference files for consistent faces and products
• Commercial use from $10 a month

Watch for

• The free plan is watermarked and not for business use
• Kling 4.0's credit cost only shows after you sign in

3. Runway: best for editing footage

• RunwayBest for editing footageFreemium

Runway is a complete studio for generating and editing video. Its own Gen-4.5 model creates 720p clips of 2 to 10 seconds from text or an image, and its Aleph 2.0 model edits existing footage from a text prompt. The same subscription also runs other companies' models, such as Kling 4.0, and includes music, voice and sound effect tools.

The Free plan provides 125 credits once. Standard costs $15 a month for 625 credits, about 52 seconds of Gen-4.5, with 4K upscaling and no watermark. Pro costs $35 for 2,250 credits. Runway allows commercial use of your videos on every plan, including Free.

Good

• Edit real footage, not only make new clips
• Other makers' models in the same plan
• Commercial use on every plan

Watch for

• Gen-4.5 tops out at 10 seconds and 720p
• Monthly credits only roll over on Max, at $95

4. Luma AI: best for HDR and color work

• Luma AIBest for HDR and color workFreemium

Luma AI is a creative app built around its own Ray models. Ray 3.2 generates 5- or 10-second clips from text or an image at up to 1080p. It's one of the few models with HDR output, plus EXR files for professional color grading, and it can restyle or reframe a video you upload.

Ray clips have no sound of their own, but the app also runs Kling 4.0, Veo 3.1 and FLUX 3, which generate audio. Plus costs $30 a month for 10,000 credits, and a 5-second 720p Ray clip uses 100 of them. Pro costs $90 for 40,000 credits, and Luma's pricing page lists no free plan.

Good

• HDR and EXR output for color grading
• Several makers' models in one app
• Commercial use on every plan

Watch for

• No free plan
• 1080p uses four times the credits of 720p

5. Wan 3.0: best on a budget

• Wan 3.0Best on a budgetFree

Wan 3.0 is Alibaba's video model, available in the Wan app or through Alibaba Cloud's API. Alibaba says it generates up to 30 seconds of video with sound in a single pass, at up to 1080p, starting from text, images, video or audio.

On the Free plan you can still generate videos one at a time, because credits only move your jobs up the queue. Free clips are short, below 1080p and watermarked. Pro costs $10 a month and unlocks 1080p, 10- to 30-second clips and watermark-free downloads.

Good

• Free to use if you can wait
• 30-second clips with sound on a $10 plan
• An API for developers

Watch for

• Free clips are watermarked and below 1080p
• The pricing page doesn't cover commercial use

Which AI video generator makes the longest clips?

Most generators produce one short clip at a time, and you combine clips in an editor to build a longer video. These are the longest single clips each tool generates today.

• 30 seconds: Kling 4.0 and Wan 3.0, both with sound, and Kling says extending a video to 2 minutes is coming soon.
• 20 seconds: FLUX 3, at resolutions from HD up to 4K.
• 15 seconds: Gemini Omni in Google Flow on a paid plan, or 10 seconds on the free plan.
• 10 seconds: Runway's Gen-4.5 and Luma's Ray 3.2.

Can you use AI video for commercial work?

Advertisements, client projects and sponsored posts all count as commercial use, and every maker sets its own rules, sometimes different for each plan.

• Runway: its usage rights page says what you create is yours, with no non-commercial restrictions, on every plan.
• Kling AI: commercial use and watermark removal start with the $10 Standard plan, and the free Basic plan includes neither.
• Luma AI: every plan includes commercial use, starting at $30 a month.
• FLUX 3: Black Forest Labs says usage through its API includes full commercial rights.
• Google Flow: Google says it won't claim ownership of what you create, and every clip carries an invisible SynthID watermark.
• Wan: the pricing page doesn't mention commercial use, so read its terms first, and watermark-free downloads require Pro.

No plan lets you copy a real person, a brand or someone else's footage without their permission.

How much does AI video cost per second?

Apps sell credits, and each model uses a set number of credits per second. Several makers also publish a price per second for their API, which is the easiest way to compare.

• Gemini Omni 1.2 Flash on the Gemini API: about $0.07 a second at 720p, $0.10 at 1080p and $0.21 at 4K, with no free API tier.
• Luma Ray 3.2 on Luma's API: $0.30 for 5 seconds at 720p, or $1.20 at 1080p.
• Runway Gen-4.5: $0.12 a second on Runway's API, or 12 credits a second in the app.
• FLUX 3: $0.17 a second in HD, rising to $0.80 in 4K, with sound included at no extra charge.
• Kling AI: Kling 3.0 uses 12 credits a second at 1080p with sound, so the $10 plan covers about 55 seconds.

Unsuccessful attempts add up quickly, so budget for several takes per finished shot. If you also need a voice-over, our guide to the best AI voice generators compares the options.

Which one should you pick?

• You want to start free and edit clips by describing changesGoogle Flow
• You need clips of up to 30 seconds with soundKling AI
• You edit real footage and want many models in one planRunway
• You grade color and need HDR or EXR filesLuma AI
• You want the lowest price and don't mind a queueWan 3.0
• You're building video into a product and pay per secondFLUX 3

How we picked

We started from the video generators listed on Recaply and kept the tools that create new clips from text or images. We read every maker's pricing page, help center and model documentation on Nov 8, 2026, and we point out where their own pages disagree.

We left out OpenAI's Sora because it has closed, and Hailuo AI because its plan prices only appear after you sign in. You can still try MiniMax's H3 and ByteDance's Seedance 2.5 inside Pika. For a presenter speaking to camera, an avatar tool such as Synthesia or HeyGen is a better fit.

We have not run side-by-side tests, so everything here comes from the makers' own published information. No maker paid to appear in this list or saw it before publication, and if a price changes, we update this page and its date.

Questions people ask